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Considerable wastewater from corn starch processing contains lots of organic matter, which is difficulty to treat and causes serious pollution. As the starch processing industry continues to expand, more and more concern focuses on water pollution. In this study, when membrane Biological Reactor treats wastewater from corn starch processing, the influent volume 3 loads up to 20 ~ 50kg COD/(m3 day),...
The effects of pH on the hydrolysis and acidification from WAS in mesophilic and thermophilic anaerobic fermentation was investigated in this study. Both the mesophilic and thermophilic waste activated sludge (WAS) hydrolysis were improved significantly at alkaline pHs than at other pHs. Themophilic conditions improved the WAS hydrolysis compared to that mesophilic ones. The accumulation of short-chain...
A series of batch experiments on improving production of soluble substrates such as soluble chemical oxygen demand (SCOD), Short-chain fatty acids (SCFAs), soluble protein as well as soluble carbohydrate from primary sludge fermentation were conducted controlling pH at 4, 7, 10 and uncontrolled (the blank test). Results presented that pH 10 had great advantages over improvements of soluble organic...
To investigate the effects of inhibitory factors of landfill leachate on aerobic granulation, a column sequencing batch reactor (SBR) was operated to cultivate granules with landfill leachate. Results showed that high concentration of ammonia and salinity repressed the production of EPS and development of microbial activity, induced the increment of effluent SS, thus inhibited the granulation process...
To investigate the efficiency of submerged pulse corona (SPC) discharges in water we built a laboratory scale, parallel-plate reactor that is part of a closed loop water circulation system. A pulsed voltage is applied across the electrodes. One of the electrodes is coated with a porous ceramic layer to create local field enhancements to initiate corona discharges. For energization of the SPC reactor...
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